Team:Heidelberg/Tyrocidine week12 ms

From 2013.igem.org

Contents

Validation of the strain from Marahiel by Colony PCR

Primers used

TycA_A-domain: IK09, IK10
TycB1_A-domain: IK11, PW01
TycB1_E-domain: PW02, PW03

Conditions

Colony-PCR of B. brevis. Lane 4: NEB 2-log; lane 1: primers IK09+IK10; lane 2: primers IK11+PW01;lane 3: primers PW02+PW03
Cycles temperature [°C] Time [s]
1 95 300
12 95 60
66 ↓0.5°C 30
72 240
23 95 60
60 30
72 240
1 72 600
1 12 inf

Handling of the strain

  • received Brevibacillus parabrevis ATCC 8185 from Marahiel lab
  • plate stood 1 week at RT in Marburg => wet, stinks
  • plate cells on LB, inoculate 2x YT medium
  • scratch everything from plate, centrifuge, wash with H2O, centrifuge, resuspend in H2O

Result

Three bands were visible in the UV-chamber. The three respective lanes implicate a fragment size of 1.5kb, 1.5kb and 1.2kb. This matches well the expected sizes. Therefore we can conclude that our colony PCRs have been successful!

Date: 19-07-2013

Evaluation of the strain

Result

Colonies grew over night -> as colony PCRs were positive and the strain was cultivatable, the plate of marburg seemed to be intact (despite long storage under bad conditions).